CN204627589U - Mining with brill formula drilling track measuring system - Google Patents
Mining with brill formula drilling track measuring system Download PDFInfo
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- CN204627589U CN204627589U CN201520011625.8U CN201520011625U CN204627589U CN 204627589 U CN204627589 U CN 204627589U CN 201520011625 U CN201520011625 U CN 201520011625U CN 204627589 U CN204627589 U CN 204627589U
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Abstract
本实用新型涉及一种矿用随钻式钻孔轨迹测量系统，测量系统包括测量探杆，测量探杆中设有用于测量空间姿态的角度传感器，所述的测量探杆中设有用于检测测量探杆处于运动、静止状态的运动状态测量器，测量探杆中还设有用于根据运动状态测量器输出的表示测量探杆由运动状态转为完全静止状态时测量信号控制所述角度传感器进行空间姿态测量的主控制器，所述主控制器与所述运动状态测量器及角度传感器对应信号连接。运动状态测量器在检测测量探杆由运动状态转为完全静止状态时，由主控制器控制角度传感器启动进行空间姿态测量，保证空间姿态测量的准确性，提高测量精度。
The utility model relates to a mine-used drilling-while-drilling drilling track measurement system. The measuring system includes a measuring probe rod. The measuring probe rod is provided with an angle sensor for measuring the spatial attitude. The measuring probe rod is provided with an angle sensor for detecting and measuring The motion state measuring device in which the probe rod is in a motion or static state, and the measuring probe rod is also provided with a measurement signal for controlling the angle sensor to perform a spatial adjustment according to the output of the motion state measuring device when the measuring probe rod changes from a motion state to a completely static state. A main controller for attitude measurement, the main controller is connected to the motion state measuring device and the angle sensor corresponding to the signal. When the motion state measuring device detects that the measuring probe changes from a motion state to a completely static state, the main controller controls the angle sensor to start to measure the space attitude, so as to ensure the accuracy of the space attitude measurement and improve the measurement accuracy.
Description
Technical field
The utility model relates to a kind of mining with brill formula drilling track measuring system.
Background technology
Geological prospecting, before carrying out coal mining activity, first can be carried out usually in colliery, to find out the geology distribution of coal seam, rock, water, has the colliery of gas usually to need to carry out gas drainage under suction; Carry out these operations and mainly lean against the boring of squeezing into some in coal seam or rock stratum; The angle of boring, position whether with design object concord to later stage geological prospecting accuracy, the effect of gas drainage under suction, so the angle of boring and position (being spatially called track) are the important examination item of coal mine drilling operation.
Drilling track examination concerning most colliery, at present or the management project of a disappearance.There is the colliery of technical strength, the directional drilling rig with orientating function can be purchased, implement according to design object at drilling stage.Because directional drilling machine is bulky, cost is high, and a lot of coal mine roadway cannot be applied, more Coal Exploitations be the Normal hydraulic rig (figure mono-) of omnidirectional function, the track that this type of rig forms boring is difficult to examination usually.
During Normal hydraulic drill hole of drilling machine, main working process is as follows: unit head has spinfunction, propelling, drawing function, under unit head drives, drilling rod is squeezed in coal seam or rock stratum one by one, each drilling rod fixed length, after squeezing into the drilling rod of some, drawing is exited one by one.
The drilling track measuring system existed in the market, measuring operator scheme is all carry out by the following method substantially: after bore operation completes, and measurement feeler lever (the in-built angular transducer for measurement space attitude) is re-started a drilling process as drilling rod.In this process, the attitude angle in feeler lever meeting each moment of time recording self and corresponding time is measured; Operator's artificial counting installs the drilling rod number (normally having button on measurement mechanism main frame) when drilling rod stops each time additional, the time (automatically recording).After this secondary has crept into, take out and measure feeler lever, main frame and feeler lever carry out communication to read the angle-data in measuring process, main frame is using the drilling rod number of self record (be multiplied by single run of steel after as the degree of depth), carry out one_to_one corresponding with the attitude angle degrees of data in feeler lever according to the time, finally form the space tracking of a boring.
But the method for above-mentioned this measurement borehole space track on the one hand measuring method efficiency is low, complicated operation, on the other hand, measure the angular transducer of feeler lever inside when measuring, drilling rod may in motion, also may static, be difficult to ensure that angular transducer institute surveys the accuracy of parameter, the final accuracy affecting space tracking.
Utility model content
The utility model provides a kind of mining with brill formula drilling track measuring system, to solve in prior art the inaccurate technical problem of angular transducer measurement parameter measured in feeler lever.
The mining technical scheme with the formula of boring drilling track measuring system provided by the utility model is: mining with brill formula drilling track measuring system, comprise measurement feeler lever, measure in feeler lever the angular transducer be provided with for measurement space attitude, be provided with in described measurement feeler lever and be in motion for detecting measurement feeler lever, the motion state measuring appliance of inactive state, measure in feeler lever measuring-signal when the expression measurement feeler lever that is also provided with for exporting according to motion state measuring appliance transfers complete inactive state to by motion state and control the master controller that described angular transducer carries out spatial attitude measurement, described master controller is connected with described motion state measuring appliance and angular transducer respective signal.
Described motion state measuring appliance is accelerometer or electronic gyroscope or vibrating sensor; Described angular transducer is electronic compass.
Described measuring system also comprises the non-contact measurement probes for measuring drilling depth, measuring probe comprises the permanent magnet on the non-contacting standard drill pipe being sleeved on head and the tail docking, measuring probe also comprise be arranged at permanent magnet side, at drilling rod joint by exporting the magnetic induction sensor of corresponding signal during this permanent magnet.
Described magnetic induction sensor is that described permanent magnet is loop configuration by the Hall element group formed along the uniform multiple Hall voltage sensors of standard drill pipe circumference.
Described permanent magnet is intervally distributed with two along the standard drill pipe direction of motion, and the corresponding two permanent magnet interval setting pitch arrangement of described magnetic induction sensor have two.
Described measuring probe comprises the magnetic conduction armature bracket on the non-contacting standard drill pipe being sleeved on head and the tail docking, magnetic conduction armature bracket is provided with the interior perforation of passing for standard drill pipe, two permanent magnets are installed on magnetic conduction armature bracket along standard drill pipe direction of motion interval, and two magnetic induction sensors are installed on magnetic conduction armature bracket along standard drill pipe direction of motion interval.
Described measuring system also comprises the non-contact measurement probes for measuring drilling depth, this measuring probe comprises the exciting circuit for generation of alternating current, exciting circuit comprises for the non-contacting excitation coil be sleeved on standard drill pipe, measuring probe also comprises the testing circuit for detecting excitation coil internal signal variation in the process of standard drill pipe through described excitation coil, testing circuit comprises the magnetic test coil for the described excitation coil internal signal variation of the non-contacting detection be sleeved on standard drill pipe, magnetic test coil and excitation coil layout close to each other are to form electromagnetic coupled with described excitation coil.
Described exciting circuit comprise connect successively alternating excitation source, signal amplification unit and described excitation coil.
Described alternating excitation source is the constant sinusoidal excitation source of amplitude.
Described testing circuit comprises the described magnetic test coil that connects successively and processes the detection signal that magnetic test coil exports and detection signal and setting threshold value to be compared and according to the signal processing unit of comparative result output pulse signal, described measurement mechanism also comprises the detection main frame for being connected with the output end signal of signal processing unit to count described pulse signal.
The beneficial effects of the utility model are: provided by the utility model mining with in brill formula drilling track measuring system, measuring feeler lever inside is provided with for detecting the motion state measuring appliance measuring feeler lever state, this motion state measuring appliance is when detecting measurement feeler lever and transferring complete inactive state to by motion state, started by main controller controls angular transducer and carry out spatial attitude measurement, ensure the accuracy that spatial attitude is measured, improve certainty of measurement.
Further, when using drilling rod drilling depth measurement mechanism provided by the utility model to measure drilling depth, there is the body of rod position of drilling rod different with the structure of head and the tail docking site, when the standard drill pipe of head and the tail docking is through measuring probe, the body of rod position of standard drill pipe and joint are to the magnetic resistance difference in the magnetic field of whole permanent magnet, the reacting condition of magnetic resistance is in the change of the magnetic induction intensity in magnetic field, at the head and the tail joint of adjacent modular drilling rod through permanent magnet through magnetic induction sensor, magnetic induction sensor senses because drilling rod joint causes magnetic circuit magnetic induction intensity to be undergone mutation through magnetic circuit reluctance sudden change during permanent magnet, export pulse detection signals, paired pulses detection signal counts, the length number of pulse detection signals being multiplied by standard drill pipe can obtain drilling depth.Whole measurement mechanism structure is simple, easy to use.And whether the joint of the detection signal criterion drilling rod exported by magnetic induction sensor in measuring method provided by the utility model is by measuring probe, effectively can reduce the labour intensity of workman, improve the efficiency of workman.
Further, permanent magnet adopts permanent-magnetic clamp, and magnetic field is effective, can improve accuracy of detection.
Further, at measurement mechanism provided by the utility model in use, the standard drill pipe that head and the tail are docked is successional passes through measuring probe, the non-contacting excitation coil be sleeved on standard drill pipe can apply induced field to standard drill pipe, this induced field can produce eddy current in the standard drill pipe inside of head and the tail docking, according to the law of electromagnetic induction, the change of original excitation coil self-field can be revolted in the magnetic field that eddy current produces, be equivalent to the change of excitation coil direct impedance, excitation coil internal signal changes, by excitation coil internal signal variation being detected with the magnetic test coil of excitation coil electromagnetic coupled, because not only there is seam at joint in the standard drill pipe of head and the tail docking, and the metal cross-sectional area of seam crossing is also much larger than other positions of the standard drill pipe body of rod, head and the tail docking standard drill pipe successional through excitation coil time, the eddy current that the docking place of standard drill pipe produces is different with the impact of eddy current on the internal signal of excitation coil that body of rod place, middle part produces, the internal signal variation of excitation coil is not identical yet, namely when the impact that the joint of standard drill pipe is caused excitation coil by other positions that the impact caused during excitation coil is greater than the standard drill pipe body of rod, the magnetic test coil forming electromagnetic coupled with excitation coil can detect excitation coil internal signal variation, and then whether pass through by the joint of the detection signal criterion drilling rod of magnetic test coil output, effectively can reduce the labour intensity of workman, improve the efficiency of workman.
Accompanying drawing explanation
Fig. 1 is that mining that the utility model provides measures feeler lever internal components block diagram with in brill formula drilling track measuring system;
Fig. 2 be measure electronic compass institute's interception angle and angle of pitch schematic diagram in feeler lever (in figure, X-axis points to direct north, Y-axis point to positive west to, Z axis points to straight up, and α is the angle of pitch (-90 °-90 °), and β is azimuth (0-360 °));
Fig. 3 is prior art Plays drilling rod syndeton schematic diagram;
Fig. 4 is that mining that the utility model provides is arranged on boring non-contact measurement apparatus embodiment 1 in formula drilling track measuring system the structural representation that the enterprising perform hole of rig measures deeply;
Fig. 5 is the electrical principle block diagram of measuring probe in Fig. 4;
Fig. 6 is figure principle of eddy-current effect figure;
Fig. 7 is that mining that the utility model provides is arranged on boring non-contact measurement apparatus embodiment 2 in formula drilling track measuring system the structural representation that the enterprising perform hole of rig measures deeply;
Fig. 8 is measuring probe structural representation in Fig. 7;
Fig. 9 is A-A sectional view in Fig. 8;
The sequential chart of two magnetic induction sensor output pulse signals when Figure 10 is drilling rod positive movement;
The sequential chart of two magnetic induction sensor output pulse signals when Figure 11 is drilling rod counter motion.
Detailed description of the invention
A mining embodiment with boring formula drilling track measuring system, when in this embodiment, trajectory measurement system mainly comprises use as common drilling rod squeeze into measurement feeler lever in hole and for measure drilling depth noncontact time measuring probe.
The internal components block diagram of measurement feeler lever as depicted in figs. 1 and 2, measurement feeler lever in the present embodiment is substantially identical with the structure of measurement feeler lever of the prior art, measuring the inner angular transducer be all provided with for measurement space attitude of feeler lever, distinguish with prior art: be also provided with in measurement feeler lever and be in motion for detecting measurement feeler lever, the motion state measuring appliance of inactive state, measure in feeler lever measuring-signal when the expression measurement feeler lever that is also provided with for exporting according to motion state measuring appliance transfers complete inactive state to by motion state and control the master controller that described angular transducer carries out spatial attitude measurement, described master controller is connected with described motion state measuring appliance and angular transducer respective signal.
In the present embodiment, described motion state measuring appliance is electronic gyroscope; Described angular transducer is electronic compass.
Individual in other embodiments, motion state measuring appliance also can be accelerometer or vibrating sensor, as long as can detect that measuring feeler lever sends detection signal when being turned to complete inactive state by motion state to master controller, started by main controller controls electronic compass and carry out the angle of pitch α of spatial attitude and the size of azimuthal angle beta, continuous motion and continuous static time main controller controls electronic compass close, reduction power consumption.
During use, when main controller controls electronic compass starts, electronic compass is measured when the angle of pitch α of pre-test feeler lever spatial attitude present position and the size of azimuthal angle beta, is communicated with current time together stored in main controller.And when being in nonstatic state, electronic compass dormancy, does not carry out the measurement of spatial attitude.
After in measurement, measurement by sound completes, it extracted from boring, the spatial attitude data recorded by master controller export to data processing unit, for undertaken corresponding by the drilling depth measured by non-contact measurement device for measuring, finally try to achieve borehole space track.
The embodiment 1 of the non-contact measurement apparatus for detecting hole depth provided by the utility model:
As shown in Figures 3 to 6, the measurement mechanism in this embodiment comprises measuring probe 2 and detects main frame 3, and the measuring probe in the present embodiment is directly installed on the clamper 1 of rig in use, and measuring probe 2 is sleeved on standard drill pipe 4 in use.Measuring probe 2 comprises the exciting circuit for generation of alternating current, exciting circuit comprise connect successively alternating excitation source 21, signal amplification unit 22 and excitation coil 23, excitation coil 23 is sleeved on standard drill pipe 4 for non-contacting, and the alternating excitation source 21 in the present embodiment is the constant sinusoidal excitation source of amplitude.Measuring probe also comprises the testing circuit for detecting excitation coil internal signal variation in the process of standard drill pipe through described excitation coil, testing circuit comprises the magnetic test coil 24 and signal processing unit 25 that connect successively, magnetic test coil 24 is for non-contacting detection described excitation coil 23 internal signal variation be sleeved on standard drill pipe 4, and this magnetic test coil 24 and excitation coil 23 layout close to each other are to form electromagnetic coupled with described excitation coil 23, excitation coil 23 entirety herein and magnetic test coil 24 entirety stagger on standard drill pipe length direction, signal processing unit 25 is then that the detection signal exported magnetic test coil 24 processes and to compare and detection signal and setting threshold value according to comparative result output pulse signal, signal processing unit 25 pairs of detection signals amplify, amplitude and phase place differentiate process.Detect main frame 3 to be connected with the output end signal of signal processing unit 25 and to count with the pulse signal exported signal processing unit, will number be counted be multiplied by the length of standard drill pipe, and can drilling depth be obtained.
The measurement mechanism that the present embodiment provides in use, measuring probe 2 is installed on clamper 3, measuring probe 2 is non-contacting to be sleeved on standard drill pipe 4, when the unit head on rig is by successional for the standard drill pipe 4 of head and the tail docking as shown in Figure 4 squeezing in coal seam or rock stratum 6, the non-contacting excitation coil 23 be sleeved on standard drill pipe 4 can apply induced field to standard drill pipe 4, as shown in Figure 6, this induced field can produce eddy current in the standard drill pipe inside of head and the tail docking, according to the law of electromagnetic induction, the change of original excitation coil 23 self-field can be revolted in the magnetic field that eddy current produces, be equivalent to the change of excitation coil 23 direct impedance, excitation coil 23 internal signal changes, by excitation coil internal signal variation being detected with the magnetic test coil 24 of excitation coil 23 electromagnetic coupled, because not only there is seam at joint 5 in the standard drill pipe 4 of head and the tail docking, and the metal cross-sectional area of seam crossing is also much larger than other positions of the standard drill pipe body of rod, head and the tail docking standard drill pipe successional through excitation coil time, the eddy current that the joint 5 of standard drill pipe 4 produces is different with the impact of eddy current on the internal signal of excitation coil 23 that body of rod place, middle part produces, the internal signal variation of excitation coil 23 is not identical yet, namely when the impact that the joint 5 of standard drill pipe is caused excitation coil by other positions that the impact caused during excitation coil 23 is greater than the standard drill pipe body of rod, the magnetic test coil forming electromagnetic coupled with excitation coil can detect excitation coil internal signal variation, and then whether pass through by the joint of the detection signal criterion drilling rod of magnetic test coil 24 output, avoid needing workman to be moved by eye-observation standard drill pipe joint to pass through, effectively can reduce the labour intensity of workman, improve the efficiency of workman.And, owing to being also provided with the signal processing unit that directly can judge the useful signal exceeding setting threshold value in the embodiment of above-mentioned measurement mechanism, so, when the joint of standard drill pipe is by excitation coil, the detection signal exported due to magnetic test coil is the useful signal exceeding setting threshold value, signal processing unit 25 will to detection main frame 6 output pulse signal, counted by detection main frame pulse signals, because count standard drill pipe process, the length finally counting number being multiplied by standard drill pipe is drilling depth.
In the present embodiment, testing circuit not only comprises magnetic test coil, also comprise built-in for the signal processing unit processed the detection signal detected by magnetic test coil and it is compared with setting threshold value, in other embodiments, also can save signal processing unit, but directly the detection signal detected by magnetic test coil be exported to the external device being used for processing signal and compare.
In the present embodiment, measurement mechanism not only comprises measuring probe, also be provided with for return pulse signal to carry out the detection main frame counted, in other embodiments, also detection main frame can be saved, and adopt external warning alert as alarm lamp or alarming horn receive magnetic test coil the useful signal that exports, with realize to the joint of standard drill pipe by time warning.
In the present embodiment, the alternating excitation source in exciting circuit is the constant sinusoidal excitation source of amplitude, and in other embodiments, alternating excitation source also can adopt cosine driving source.
In the present embodiment, can close to each other to form electromagnetic coupled both the overall and magnetic test coil entirety of excitation coil staggers to make on standard drill pipe length direction.
Above-mentioned measurement mechanism counts when rod boring, signal processing unit in measuring probe is connected with detection host signal, the pulse signal corresponding with useful signal is directly flowed to detection main frame by signal processing unit, synchro measure can be carried out like this in the process of drilling, and drill terminate after rapidly after obtain drilling depth, do not need artificial.In other embodiments, also measurement count can be carried out when drilling rod is extracted by rig.
The embodiment 2 of the non-contact measurement apparatus for detecting hole depth provided by the utility model:
As shown in Fig. 3 and Fig. 7-11, measurement mechanism in this embodiment comprises measuring probe 32 and detects main frame 33, measuring probe 32 in the present embodiment is directly installed on the clamper 31 of rig in use, and measuring probe 32 is sleeved on standard drill pipe 34 in use.
Measuring probe herein comprises for the magnetic conduction armature bracket 40 on the non-contacting standard drill pipe 34 being sleeved on head and the tail docking, magnetic conduction armature bracket 40 is provided with the interior perforation of passing for standard drill pipe, magnetic conduction armature bracket 40 is installed with two permanent magnets along standard drill pipe direction of motion interval, two permanent magnets are for the loop configuration on the non-contacting standard drill pipe 34 being sleeved on head and the tail docking, and two permanent magnets are respectively the first permanent magnet 42 and the second permanent magnet 47.Also comprise in measuring probe respectively corresponding be arranged on two permanent magnet sides, at drilling rod joint by exporting the magnetic induction sensor of corresponding signal during corresponding permanent magnet, corresponding two permanent magnets of magnetic induction sensor are herein provided with two, two magnetic induction sensors are A sensor 44 and B sensor 46, and each magnetic induction sensor is all for by along the Hall element group that forms of the uniform multiple Hall voltage sensors 44 of standard drill pipe circumference.
In addition, magnetic conduction armature bracket 40 is provided with the both sides that middle magnetic guiding loop 45, two magnetic induction sensor is distributed in described middle magnetic guiding loop 45 between two permanent magnets.
The pulse signal that two magnetic induction sensors export flows to and detects main frame 33 after signal processor processes, is counted, counting number is multiplied by the length of standard drill pipe, can obtains drilling depth by detection main frame 33 paired pulses detection signal.
The measurement mechanism that the present embodiment provides in use, measuring probe 32 is installed on clamper 31, measuring probe 32 is non-contacting to be sleeved on standard drill pipe 34, when the unit head on rig is by successional for the standard drill pipe of the head and the tail docking shown in Fig. 6 squeezing in coal seam or rock stratum 6, when drill rod body part is through measuring probe 32, because in the middle part of the drilling rod as magnetic conduction iron material, space is large, whole magnetic circuit reluctance increases, and when the joint of adjacent drill pipes is through measuring probe, the magnetic resistance of whole magnetic circuit diminishes, in the change of magnetic resistance change rate reaction magnetic induction intensity around drilling rod, after this change being detected by two magnetic induction sensors, export corresponding pulses detection signal.Specifically, drilling rod joint is greater than through the impact of permanent magnet on whole magnetic field the impact that drill rod body causes whole magnetic field through permanent magnet, therefore, two magnetic induction sensors can by effectively distinguishing the change with the magnetic induction intensity of drill rod body and drilling rod joint.
And, in the present embodiment, be provided with two cover permanent magnets and corresponding two cover magnetic induction sensors in measuring probe, two cover magnetic induction sensors are no more than a tool joint length along the axial spacing of the standard drill pipe direction of motion, send pulse detection signals respectively by two magnetic induction sensors.
As shown in Figure 10, the now standard drill pipe positive movement when standard drill pipe enters probe from left side, the standard drill pipe of head and the tail docking is squeezed into rock stratum by rig, the A sensor being in left side in two cover testing circuits first exports the pulse signal corresponding with standard drill pipe docking site, exports the pulse signal corresponding with standard drill pipe docking site after being in the B sensor on right side.When standard drill pipe continues to move forward, the pulse signal corresponding with standard drill pipe docking site that the A sensor being in left side exports first disappears, and disappears after the pulse signal corresponding with standard drill pipe docking site that the B sensor being in right side exports.
As shown in figure 11, when standard drill pipe counter motion, the sequential of signal appearance and disappearance is with just in time contrary during standard drill pipe positive movement.
Like this, two two cover magnetic induction sensors can be utilized to carry out the direction of motion of criterion drilling rod, the number of the pulse detection signals that two cover magnetic induction sensors can also be exported respectively is mutually confirmed or revises the counting number that detection main frame obtains, to improve the correctness to useful signal counting number.
In the present embodiment, be provided with two permanent magnets in measuring probe, in other embodiments, also can single permanent magnet be only set, this permanent magnet can be arranged a magnetic induction sensor, also can arrange a magnetic induction sensor respectively in the both sides, front and back along the direction of motion of standard drill pipe in permanent magnet.
In the present embodiment, permanent magnet is loop configuration, and in other embodiments, permanent magnet also can for the U-shaped structure that can be sleeved on standard brick drilling rod.
In the present embodiment, permanent magnet and magnetic induction sensor are arranged on magnetic conduction armature bracket, improve measuring probe internal magnetic field environment, improve certainty of measurement.
The above-mentioned measurement mechanism of the use that the present embodiment provides can carry out the measurement of drilling depth according to following measuring method:
Rig by head and the tail docking standard drill pipe squeeze into, extract time, the joint of adjacent drill pipes is through measuring probe, magnetic induction sensor exports pulse detection signals, and paired pulses detection signal counts, and the length number of pulse detection signals being multiplied by standard drill pipe can obtain drilling depth.
And, because the permanent magnet in described measuring probe is intervally distributed with two along the standard drill pipe direction of motion, the corresponding two permanent magnet interval setting pitch arrangement of described magnetic induction sensor have two, and the sequencing sending respective pulses detection signal by detecting two magnetic induction sensors judges drilling rod moving direction.
Direction of motion when being squeezed into by standard drill pipe is defined as forward, when the sequencing that two magnetic induction sensors export pulse detection signals occurs successively according to described forward, criterion drilling rod positive movement, when two magnetic induction sensors export the sequencing of pulse detection signals according to when oppositely occurring successively, the counter motion of criterion drilling rod, when the standard drill pipe of head and the tail docking is squeezed into by rig, by the direction of motion of criterion drilling rod, described pulse detection signals number is revised, when two magnetic induction sensors export the sequencing of pulse detection signals according to when oppositely occurring N time, described pulse detection signals number is deducted N.
The measuring method that the present embodiment provides in use, when the standard drill pipe of head and the tail docking is through measuring probe, the body of rod position of standard drill pipe and joint are to the magnetic resistance difference in the magnetic field of whole permanent magnet, the reacting condition of magnetic resistance is in the change of the magnetic induction intensity in magnetic field, at the head and the tail joint of adjacent modular drilling rod through permanent magnet through magnetic induction sensor, magnetic induction sensor senses because drilling rod joint and drilling rod shaft cause magnetic circuit magnetic induction intensity to change through magnetic circuit reluctance change during permanent magnet, export pulse detection signals, paired pulses detection signal counts, the length number of pulse detection signals being multiplied by standard drill pipe can obtain drilling depth.
In addition, can also by the direction of motion of the sequential criterion drilling rod to two magnetic induction sensor output signals, when drilling rod is squeezed in coal seam by rig, host record number can also be detected by the time ordered pair of two magnetic induction sensor output signals and revises, improve accuracy of detection.
Provided by the utility model mining with in brill formula drilling track measurement mechanism, rely on and measure measurement by sound spatial attitude angle, by non-contact measurement apparatus record drilling depth, after having drilled, the spatial attitude record measuring electronic compass record in feeler lever is exported, and set up corresponding relation with the drilling depth by non-contact measurement apparatus record according to the principle of time synchronized, specifically can generate the real space track in boring procedure.
Provided by the utility model mining with in brill formula drilling track measurement mechanism, non-contact measurement apparatus is adopted to carry out real time record measurement to drilling depth, and by measuring the electronic compass record measurement space attitude angle of feeler lever inside, effectively can reduce the labour intensity of workman, improve and measure efficiency.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105649607A (en) * | 2015-12-31 | 2016-06-08 | 郑州光力科技股份有限公司 | Mining while-drilling type borehole track detection method and system and drill rod |
| CN105863615A (en) * | 2016-05-24 | 2016-08-17 | 中国地质大学（武汉） | Inclinometer for coal bed gas drilling |
| CN110702008A (en) * | 2019-11-11 | 2020-01-17 | 三明图灵智能科技有限公司 | Machine vision and scanning detection device and working method thereof |
| CN111855448A (en) * | 2020-07-31 | 2020-10-30 | 东风商用车有限公司 | Metal material rolling contact fatigue test crack detection method |
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2015
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649607A (en) * | 2015-12-31 | 2016-06-08 | 郑州光力科技股份有限公司 | Mining while-drilling type borehole track detection method and system and drill rod |
| CN105863615A (en) * | 2016-05-24 | 2016-08-17 | 中国地质大学（武汉） | Inclinometer for coal bed gas drilling |
| CN105863615B (en) * | 2016-05-24 | 2019-11-05 | 中国地质大学（武汉） | A kind of inclinometer suitable for CBM Drilling |
| CN110702008A (en) * | 2019-11-11 | 2020-01-17 | 三明图灵智能科技有限公司 | Machine vision and scanning detection device and working method thereof |
| CN111855448A (en) * | 2020-07-31 | 2020-10-30 | 东风商用车有限公司 | Metal material rolling contact fatigue test crack detection method |
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